5 easy steps to close a scanner in java

If you’re a Java programmer, you’ve probably used a Scanner object to read input from the user. But did you know that you have to close the Scanner when you’re finished with it? Otherwise, you’ll get a resource leak error.

It’s actually pretty easy to close a Scanner in Java. Just call the close() method on your Scanner object, and it will be properly closed. That’s all there is to it! Now you know how to close a Scanner in Java.

How to close a scanner in java

There is another way to close a scanner in java without having to call the close() method. You can do this by using the try-with-resources statement. This statement will automatically close any resources that are used within it, so you don’t have to worry about closing them yourself. For example:

try (Scanner scanner = new Scanner(System.in)) {

// use the scanner here

}

This is the recommended way to close a scanner in java, as it eliminates the need for explicit resource management.

What is a scanner in Java

A scanner in Java is an object that allows you to read input from the user. It can be used to read data from the keyboard, a file, or any other source of input. Once you’ve created a scanner, you can use it to read input from the user and then process that data as needed.

Why is it important to close a scanner in Java

It’s important to close a scanner in Java because otherwise, you’ll get a resource leak error. This can cause your program to crash or consume too much memory, which can lead to performance issues.

You should close a scanner in Java when you’re finished using it. Otherwise, you’ll get a resource leak error.

Why you should use the try-with-resources statement to close a scanner in Java

The try-with-resources statement is the recommended way to close a scanner in Java. This is because it eliminates the need for explicit resource management. The try-with-resources statement will automatically close any resources that are used within it, so you don’t have to worry about closing them yourself.

In summary, you can close a scanner in Java by calling the close() method on your Scanner object. You can also use the try-with-resources statement to automatically close any resources that are used within it. This is the recommended way to close a scanner in Java.